diff --git a/steps/index.html b/steps/index.html
index 26f3a77..7cad271 100644
--- a/steps/index.html
+++ b/steps/index.html
@@ -191,10 +191,8 @@
     <div class="absolute top-4 right-4 flex items-center gap-2">
       <button id="fullscreen-btn" type="button"
         class="bg-gray-100 dark:bg-gray-700 text-gray-700 dark:text-gray-300 border border-gray-300 dark:border-gray-600 shadow-sm hover:bg-gray-200 dark:hover:bg-gray-600 active:scale-95 active:shadow-inner font-medium rounded-lg text-xs px-4 py-2 transition-all">
-        FULLSCREEN
-        <span
-          class="text-xs font-mono bg-gray-200 dark:bg-gray-600 text-gray-700 dark:text-gray-200 px-1.5 py-0.5 rounded">
-          <br>(F11)
+        FULLSCREEN<br>
+        <span class="text-xs font-mono bg-gray-200 dark:bg-gray-600 text-gray-700 dark:text-gray-200 px-1.5 py-0.5 rounded">(F11)
         </span>
       </button>
       <button id="explorer-btn" type="button"
diff --git a/steps/src/main.js b/steps/src/main.js
index 35f49be..13ce244 100644
--- a/steps/src/main.js
+++ b/steps/src/main.js
@@ -99,8 +99,6 @@ import {
   fullscreenBtn,
   mainContent,
   closeMenuBtn,
-  fullscreenEnterIcon,
-  fullscreenExitIcon,
   menuScrim,
   toggleConfirmedOnly,
   resetUIForNewLoad,
@@ -650,18 +648,6 @@ fullscreenBtn.addEventListener("click", () => {
   }
 });
 
-// This listener updates the icon whenever fullscreen state changes,
-// whether it's triggered by our button or the F11 key.
-document.addEventListener("fullscreenchange", () => {
-  if (document.fullscreenElement) {
-    fullscreenEnterIcon.classList.add("hidden");
-    fullscreenExitIcon.classList.remove("hidden");
-  } else {
-    fullscreenEnterIcon.classList.remove("hidden");
-    fullscreenExitIcon.classList.add("hidden");
-  }
-});
-
 // Event listener for offset input change.
 offsetInput.addEventListener("input", () => {
   autoOffsetIndicator.classList.add("hidden");
diff --git a/steps/src/p5/speedGraphSketch.js b/steps/src/p5/speedGraphSketch.js
index 751ae51..d606713 100644
--- a/steps/src/p5/speedGraphSketch.js
+++ b/steps/src/p5/speedGraphSketch.js
@@ -1,9 +1,11 @@
+// File: src/speedGraphSketch.js
 import { appState } from "../state.js";
 import { videoPlayer, speedGraphContainer } from "../dom.js";
 
 export const speedGraphSketch = function (p) {
   let staticBuffer, minSpeed, maxSpeed, videoDuration;
-  const pad = { top: 20, right: 130, bottom: 30, left: 50 };
+  // Reserve more top space for legend and reduce the right padding so the plot can use more width.
+  const pad = { top: 48, right: 20, bottom: 30, left: 50 };
 
   p.drawStaticGraphToBuffer = function (radarData) {
     const b = staticBuffer;
@@ -16,17 +18,16 @@ export const speedGraphSketch = function (p) {
     b.push();
     b.stroke(gridColor);
     b.strokeWeight(1);
+    // Y axis
     b.line(pad.left, pad.top, pad.left, b.height - pad.bottom);
-    b.line(
-      pad.left,
-      b.height - pad.bottom,
-      b.width - pad.right,
-      b.height - pad.bottom
-    );
+    // X axis across the new plotting width
+    b.line(pad.left, b.height - pad.bottom, b.width - pad.right, b.height - pad.bottom);
+
     b.textAlign(b.RIGHT, b.CENTER);
     b.noStroke();
     b.fill(textColor);
     b.textSize(10);
+
     for (let s = minSpeed; s <= maxSpeed; s += 10) {
       const y = b.map(s, minSpeed, maxSpeed, b.height - pad.bottom, pad.top);
       b.text(s, pad.left - 8, y);
@@ -40,51 +41,41 @@ export const speedGraphSketch = function (p) {
       b.line(pad.left + 1, y, b.width - pad.right, y);
       b.noStroke();
     }
+
     b.fill(textColor);
     b.text("km/h", pad.left - 8, pad.top - 8);
     b.textAlign(b.CENTER, b.TOP);
     b.noStroke();
     b.fill(isDark ? 180 : 150);
+
     const tInt = Math.max(1, Math.floor(videoDuration / 10));
     for (let t = 0; t <= videoDuration; t += tInt) {
       const x = b.map(t, 0, videoDuration, pad.left, b.width - pad.right);
       b.text(Math.round(t), x, b.height - pad.bottom + 5);
     }
     b.fill(textColor);
-    b.text("Time (s)", b.width / 2, b.height - pad.bottom + 18);
+    b.text("Time (s)", (pad.left + (b.width - pad.right)) / 2, b.height - pad.bottom + 18);
     b.pop();
 
+    // Draw CAN speed (solid blue)
     if (radarData && radarData.radarFrames) {
       b.noFill();
-      b.stroke(0, 150, 255); // Blue for CAN speed
+      b.stroke(0, 150, 255);
       b.strokeWeight(1.5);
       b.beginShape();
       for (const frame of radarData.radarFrames) {
-        if (frame.canVehSpeed_kmph === null || isNaN(frame.canVehSpeed_kmph)) {
-          continue;
-        }
+        if (frame.canVehSpeed_kmph === null || isNaN(frame.canVehSpeed_kmph)) continue;
         const relTime = frame.timestampMs / 1000;
         if (relTime >= 0 && relTime <= videoDuration) {
-          const x = b.map(
-            relTime,
-            0,
-            videoDuration,
-            pad.left,
-            b.width - pad.right
-          );
-          const y = b.map(
-            frame.canVehSpeed_kmph,
-            minSpeed,
-            maxSpeed,
-            b.height - pad.bottom,
-            pad.top
-          );
+          const x = b.map(relTime, 0, videoDuration, pad.left, b.width - pad.right);
+          const y = b.map(frame.canVehSpeed_kmph, minSpeed, maxSpeed, b.height - pad.bottom, pad.top);
           b.vertex(x, y);
         }
       }
       b.endShape();
     }
 
+    // Draw Ego speed (dashed green)
     if (radarData && radarData.radarFrames) {
       b.stroke(0, 200, 100);
       b.drawingContext.setLineDash([5, 5]);
@@ -92,21 +83,9 @@ export const speedGraphSketch = function (p) {
       for (const frame of radarData.radarFrames) {
         const relTime = frame.timestampMs / 1000;
         if (relTime >= 0 && relTime <= videoDuration) {
-          const x = b.map(
-            relTime,
-            0,
-            videoDuration,
-            pad.left,
-            b.width - pad.right
-          );
+          const x = b.map(relTime, 0, videoDuration, pad.left, b.width - pad.right);
           const egoSpeedKmh = frame.egoVelocity[1] * 3.6;
-          const y = b.map(
-            egoSpeedKmh,
-            minSpeed,
-            maxSpeed,
-            b.height - pad.bottom,
-            pad.top
-          );
+          const y = b.map(egoSpeedKmh, minSpeed, maxSpeed, b.height - pad.bottom, pad.top);
           b.vertex(x, y);
         }
       }
@@ -114,44 +93,72 @@ export const speedGraphSketch = function (p) {
       b.drawingContext.setLineDash([]);
     }
 
+    // --- Legend: centered in the top padding area (above the plotting area) ---
     b.push();
-    b.strokeWeight(2);
     b.noStroke();
     b.fill(textColor);
+    b.textSize(12);
     b.textAlign(b.LEFT, b.CENTER);
+
+    const canLabel = "CAN Speed";
+    const egoLabel = "Ego Speed";
+
+    const segLen = 18;
+    const gapBetweenSegAndLabel = 8;
+    const betweenItemsGap = 24;
+
+    // compute widths of each legend item (segment + gap + label)
+    const canItemWidth = segLen + gapBetweenSegAndLabel + b.textWidth(canLabel);
+    const egoItemWidth = segLen + gapBetweenSegAndLabel + b.textWidth(egoLabel);
+    const totalLegendWidth = canItemWidth + betweenItemsGap + egoItemWidth;
+
+    // center the legend across the plotting region (pad.left .. b.width - pad.right)
+    const plottingLeft = pad.left;
+    const plottingRight = b.width - pad.right;
+    const centerX = (plottingLeft + plottingRight) / 2;
+    const legendStartX = centerX - totalLegendWidth / 2;
+    const legendY = pad.top / 2; // vertically centered inside the top padding
+
+    // Draw CAN legend item
+    b.push();
     b.stroke(0, 150, 255);
-    b.line(b.width - 120, pad.top + 10, b.width - 100, pad.top + 10);
+    b.strokeWeight(2);
+    b.line(legendStartX, legendY + 6, legendStartX + segLen, legendY + 6);
     b.noStroke();
-    b.text("CAN Speed", b.width - 95, pad.top + 10);
+    b.fill(textColor);
+    b.text(canLabel, legendStartX + segLen + gapBetweenSegAndLabel, legendY + 6);
+    b.pop();
+
+    // Draw Ego legend item
+    const egoX = legendStartX + canItemWidth + betweenItemsGap;
+    b.push();
     b.stroke(0, 200, 100);
+    b.strokeWeight(2);
     b.drawingContext.setLineDash([3, 3]);
-    b.line(b.width - 120, pad.top + 30, b.width - 100, pad.top + 30);
+    b.line(egoX, legendY + 6, egoX + segLen, legendY + 6);
     b.drawingContext.setLineDash([]);
     b.noStroke();
-    b.text("Ego Speed", b.width - 95, pad.top + 30);
+    b.fill(textColor);
+    b.text(egoLabel, egoX + segLen + gapBetweenSegAndLabel, legendY + 6);
+    b.pop();
+
     b.pop();
   };
 
   p.setup = function () {
-    let canvas = p.createCanvas(
-      speedGraphContainer.offsetWidth,
-      speedGraphContainer.offsetHeight
-    );
+    let canvas = p.createCanvas(speedGraphContainer.offsetWidth, speedGraphContainer.offsetHeight);
     canvas.parent("speed-graph-container");
     staticBuffer = p.createGraphics(p.width, p.height);
     p.noLoop();
   };
 
   p.setData = function (radarData, duration) {
-
     if (!radarData || !radarData.radarFrames) return;
-    videoDuration = duration; // Accept duration, even if it's 0 or NaN initially
+    videoDuration = duration;
 
     let speeds = [];
     if (radarData && radarData.radarFrames) {
-      const egoSpeeds = radarData.radarFrames.map(
-        (frame) => frame.egoVelocity[1] * 3.6
-      );
+      const egoSpeeds = radarData.radarFrames.map((frame) => frame.egoVelocity[1] * 3.6);
       speeds.push(...egoSpeeds);
 
       const canSpeeds = radarData.radarFrames
@@ -160,24 +167,17 @@ export const speedGraphSketch = function (p) {
       speeds.push(...canSpeeds);
     }
 
-    minSpeed =
-      speeds.length > 0 ? Math.floor(Math.min(...speeds) / 10) * 10 : 0;
-    maxSpeed =
-      speeds.length > 0 ? Math.ceil(Math.max(...speeds) / 10) * 10 : 10;
+    minSpeed = speeds.length > 0 ? Math.floor(Math.min(...speeds) / 10) * 10 : 0;
+    maxSpeed = speeds.length > 0 ? Math.ceil(Math.max(...speeds) / 10) * 10 : 10;
     if (maxSpeed <= 0) maxSpeed = 10;
     if (minSpeed >= 0) minSpeed = 0;
 
-    // *** KEY CHANGE ***
-    // Only try to draw the static graph if the duration is valid.
     if (videoDuration > 0) {
       p.drawStaticGraphToBuffer(radarData);
     }
-    //p.redraw();
   };
 
   p.draw = function () {
-    // *** KEY CHANGE ***
-    // If duration is not ready, show a waiting message and stop
     if (!videoDuration || videoDuration <= 0) {
       const isDark = document.documentElement.classList.contains("dark");
       p.background(isDark ? [55, 65, 81] : 255);
@@ -191,51 +191,36 @@ export const speedGraphSketch = function (p) {
   };
 
   function drawTimeIndicator() {
-    // This new, more robust check is the fix. It ensures that the video duration is valid AND
-    // the main application has initialized the currentFrame before attempting to draw.
     if (
       !videoDuration ||
       videoDuration <= 0 ||
       appState.currentFrame === null ||
       appState.currentFrame === undefined
     ) {
-      return; // Stop here if the state is not ready
+      return;
     }
 
-    // Get the current frame's data as the single source of truth
     const frameData = appState.vizData.radarFrames[appState.currentFrame];
-    if (!frameData) return; // Exit if data for the specific frame isn't ready
+    if (!frameData) return;
 
-    // Calculate the X position from the current frame's precise timestamp
     const currentTimeSec = frameData.timestampMs / 1000.0;
-    const x = p.map(
-      currentTimeSec,
-      0,
-      videoDuration,
-      pad.left,
-      p.width - pad.right
-    );
-
-    // Draw the red time indicator line at the accurate X position
+    const x = p.map(currentTimeSec, 0, videoDuration, pad.left, p.width - pad.right);
+
     p.stroke(255, 0, 0, 150);
     p.strokeWeight(1.5);
     p.line(x, pad.top, x, p.height - pad.bottom);
 
-    // Now, draw the circle using the same frame data
     if (frameData.canVehSpeed_kmph !== null && !isNaN(frameData.canVehSpeed_kmph)) {
-        const canSpeed = frameData.canVehSpeed_kmph;
-        const y = p.map(canSpeed, minSpeed, maxSpeed, p.height - pad.bottom, pad.top);
-        p.fill(255, 0, 0);
-        p.noStroke();
-        p.ellipse(x, y, 8, 8);
+      const canSpeed = frameData.canVehSpeed_kmph;
+      const y = p.map(canSpeed, minSpeed, maxSpeed, p.height - pad.bottom, pad.top);
+      p.fill(255, 0, 0);
+      p.noStroke();
+      p.ellipse(x, y, 8, 8);
     }
-}
+  }
 
   p.windowResized = function () {
-    p.resizeCanvas(
-      speedGraphContainer.offsetWidth,
-      speedGraphContainer.offsetHeight
-    );
+    p.resizeCanvas(speedGraphContainer.offsetWidth, speedGraphContainer.offsetHeight);
     staticBuffer = p.createGraphics(p.width, p.height);
     if (appState.vizData && videoDuration > 0) {
       p.drawStaticGraphToBuffer(appState.vizData);